Xerox Corporation

Michael Edward Norkitis

David Lyell Knierim

Isaac S Frazier

James Michael Bonicatto

David Paul Platt

Michael E Jones

Carl Thomas Urban

Gerard H Rousseau

David R Koehler

James Matthew Cunnington

Douglas Dean Darling

William Bruce Weaver

Garry A Jones

Joseph Lawson

Ngoc-Diep Nguyen

Edward Charles Grenier

Paul Gregory Van Gasse

Katie Maria Teslow

Hattie Raeann Hiatt

In one embodiment, a method of operating a permanent magnet direct current (PMDC) motor in a printer has been developed. The method includes identifying that a temperature of the PMDC motor exceeds an operating temperature of the motor without the use of a direct temperature sensor. The PMDC motor operates at a reduced printing rate to prevent the motor from overheating.

Indirect temperature monitoring for thermal control of a motor in a printer

An ink level sensing system that exhibits good sensitivity is described herein. The system includes a first probe having a first active surface, a second probe having a second active surface facing the first active surface, a memory in which data indicative of a conductivity curve and command instructions are stored, and a processor configured to execute the command instructions to associate a level of fluid in a reservoir with a first signal indicative of the electrical coupling between the first active surface and the second active surface with reference to the data indicative of a conductivity curve.

Fluid level sensing system and method

A reservoir is provided for a printhead in an ink jet printing machine, the printhead having at least one printhead inlet at a rear face thereof for flow of ink from the reservoir into the printhead. The reservoir comprises a perimeter wall sealably mounted to the rear face of the printhead and defining a chamber in communication with the printhead inlet. The chamber is open at one face and the reservoir includes a resilient flexible membrane attached to the perimeter wall and covering the one face. An inlet is provided in communication with the chamber for passage of ink into the chamber. The resilient flexible membrane has an initial relaxed condition in a first state in which the reservoir is substantially full of ink, and a flexed condition in which the membrane is collapsed into the chamber.

Ink storage reservoir for a solid ink printhead

A drip bib for use with a printhead of an imaging device includes a plate having an upper surface having an upper edge, an intermediate surface angled with respect to the upper surface, and a lower edge. The intermediate surface includes a plurality of fastener openings. The lower edge includes a drip point projecting from the lower edge with remaining portions of the lower edge being upturned and angled downwardly from at least one end of the lower edge toward the drip point. A plurality of protrusions protrudes from a back side of the upper surface. The protrusions in the plurality of protrusions are spaced from each other and proximate the upper edge.

Directed flow drip bib for printhead with three point contact

A drop generator that includes a pressure chamber and an outlet channel that includes a circular outlet channel section and a non-circular outlet channel section.

Drop generator

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Newberg, OR, United States of America

Michael Edward Norkitis